Answer:
x=38.5
Step-by-step explanation:

cos(x)=
x=38.5(correct to the nearest tenth)
Hmmm im on the same question so i think its this
Step-by-step explanation:
The given sample space of S is = {ABC, ABD, ACD, BCD},
And from this sample space it can be deduced that;
(a) There can be four ways to choose the committee.
(b) There can be three ways in which person D is always included.
(c) And if persons B and C are necessarily be included, then there are two ways to form the committee.
Answer:
7
Step-by-step explanation: